AMIRTHALINGAM, M.; DAKSHNAMURTHY, P.; SHANMUGHAM, V. A study of birth defects in a tertiary care teaching hospital at Chennai, India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 7, p. 3067–3070, 2017. DOI: 10.18203/2320-1770.ijrcog20172936. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/2923. Acesso em: 7 oct. 2025.